Title :
Z-Pinch Requirements for Achieving High Yield Fusion Via A Z-Pinch Driven, Double Ended Hohlraum Concept
Author :
Lemke, Raymond W. ; Vesey, Roger A. ; Cuneo, Michael E. ; Desjarlais, Michael P. ; Mehlhorn, Thomas A.
Author_Institution :
Sandia National Laboratory, Albuquerque, NM, USA
Abstract :
Using two-dimensional (2D), radiation magnetohydrodynamics (RMHD) numerical simulations, we have designed a feasible z-pinch radiation source that ignites a high yield fuel capsule in a z-pinch driven, double ended hohlraum concept. The z-pinch is composed of nested beryllium (Be) shells and a coaxial, cylindrical foam converter. The z-pinch is designed to produce a shaped radiation pulse that compresses a capsule by a sequence of three shocks without significant entropy increase. We present results of simulations pertaining to the z-pinch design, and discuss conditions that must be achieved in the z-pinch to ensure production of the required radiation pulse.
Keywords :
Circuit simulation; Computational modeling; Fuels; Ignition; Laboratories; Magnetohydrodynamics; Numerical simulation; Optical design; Pulse shaping methods; Shape;
Conference_Titel :
Megagauss magnetic field generation and related topics, 2006 ieee international conference on
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
978-1-4244-2061-2
Electronic_ISBN :
978-1-4244-2062-9
DOI :
10.1109/MEGAGUSS.2006.4530724